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WO2018120469A1 - Écran tactile et dispositif terminal ayant un écran tactile - Google Patents

Écran tactile et dispositif terminal ayant un écran tactile Download PDF

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Publication number
WO2018120469A1
WO2018120469A1 PCT/CN2017/078275 CN2017078275W WO2018120469A1 WO 2018120469 A1 WO2018120469 A1 WO 2018120469A1 CN 2017078275 W CN2017078275 W CN 2017078275W WO 2018120469 A1 WO2018120469 A1 WO 2018120469A1
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WO
WIPO (PCT)
Prior art keywords
touch
electrode
touch driving
glass substrate
disposed
Prior art date
Application number
PCT/CN2017/078275
Other languages
English (en)
Chinese (zh)
Inventor
梁艳峰
濮春朗
叶建波
李勇
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US16/473,520 priority Critical patent/US10965798B2/en
Priority to CN201780004319.3A priority patent/CN108513653B/zh
Publication of WO2018120469A1 publication Critical patent/WO2018120469A1/fr

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • G06F3/04164Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2201/00Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/38Displays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/22Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

Definitions

  • the present application relates to the field of touch technologies, and in particular, to a touch screen and a terminal device having the touch screen.
  • the embedded capacitive touch screen is a touch screen obtained by making a touch layer in a display panel.
  • FIG. 1 is a schematic diagram showing the structure of a conventional embedded capacitive touch screen.
  • the embedded capacitive touch screen includes a touch drive electrode 101 and a touch sensing electrode 102 that are isolated from each other, and a capacitance Ctp is formed between the two electrodes.
  • a conductor for example, a human hand
  • the capacitance value of the capacitance Ctp changes, and the touch detection device recognizes the touch position according to the change in the capacitance value.
  • the touch driving electrode 101 extends in a first direction (the first direction shown in FIG. 1 is a lateral direction), and the touch driving circuit 103 is disposed on both sides of the touch driving electrode, that is, perpendicular to the touch driving electrode 101. Parallel to the gate drive circuit 104. Both the touch driving circuit 103 and the gate driving circuit 104 have a certain width, which belongs to the non-display area of the touch screen, thereby causing the non-display area width of the capacitive touch screen to be wide.
  • the present application provides a touch screen and a terminal device with a touch screen to solve the technical problem that the frame of the conventional embedded capacitive touch screen is wide.
  • the technical solutions provided by the present application are as follows:
  • the present disclosure provides a touch screen including: a touch driving electrode, a touch sensing electrode, a touch driving circuit, a gate driving circuit, a touch driving electrode lead, and a liquid crystal panel; and the touch driving electrode is disposed on the liquid crystal panel And the touch driving electrode extends along the first direction; the touch sensing electrode is disposed on the liquid crystal panel, and the touch sensing electrode extends in a second direction, the second direction is perpendicular to the first direction
  • the gate driving circuit is disposed in a non-display area of the touch screen, and the gate driving circuit extends along the second direction; the touch driving circuit is disposed in a non-display area of the touch screen, and the a touch driving circuit extending along the first direction, wherein the touch driving electrode is electrically connected to the touch driving circuit through the touch driving electrode lead; the touch driving electrode lead and the gate driving circuit are on the lower glass substrate
  • the thickness driving directions are overlapped, and the touch driving electrode leads are isolated from the gate driving circuit.
  • the touch driving electrode is laterally extended, the touch driving circuit is disposed in the non-display area of the touch screen, and parallel to the extending direction of the touch driving electrode, the touch driving electrode is electrically connected to the touch driving electrode through the touch driving electrode lead.
  • the touch driving electrode leads are overlapped with the gate driving circuit and are isolated from each other, thereby saving the width required for the touch driving electrode leads, thereby reducing the non-display area of the touch screen. Width to achieve a narrow border touch screen.
  • the liquid crystal panel includes an upper glass substrate, a liquid crystal layer, and a lower layer a glass substrate; the touch driving electrode is disposed on the lower glass substrate, the touch sensing electrode is disposed on the upper glass substrate, and the touch driving electrode and the touch sensing electrode are isolated from each other.
  • the liquid crystal panel includes an upper glass substrate, a liquid crystal layer, and a lower glass substrate; and the touch driving electrodes and the touch sensing electrodes are disposed on the lower glass substrate On the same plane, the touch driving electrodes and the touch sensing electrodes are isolated from each other.
  • the touch sensing electrode is a strip electrode and extends along the second direction, the touch sensing electrode is disposed on the lower glass substrate; the touch driving The electrode is a touch driving electrode array including a plurality of touch driving electrode blocks, one of the adjacent two columns of touch driving electrode blocks is disposed, and the touch driving electrode blocks of each row are electrically connected.
  • the embodiment of the present application provides a touch screen, a touch driving electrode, a touch sensing electrode, a touch driving circuit, an inductive processing circuit, a touch sensing electrode lead, and a liquid crystal panel, wherein the liquid crystal panel includes an upper glass substrate and a liquid crystal layer.
  • the touch driving electrode is disposed on the lower glass substrate, and the touch driving electrode extends in a first direction;
  • the touch driving circuit is disposed in a non-display area of the touch screen, and the touch The driving circuit extends in a second direction, the touch driving circuit is electrically connected to the touch driving electrode, the second direction is perpendicular to the first direction; and the touch sensing electrode is disposed on the upper glass substrate toward the a surface of the liquid crystal layer, wherein the touch sensing electrode extends along the second direction;
  • the sensing processing circuit is disposed in a non-display area of the touch screen, and the touch sensing electrode passes through the touch sensing electrode lead
  • An inductive processing circuit is electrically connected; the touch sensing electrode lead and the touch sensing electrode are located on the upper glass On the same surface of the plate.
  • the touch driving electrode is longitudinally disposed on the glass substrate, and the touch driving circuit is perpendicular to the extending direction of the touch driving electrode, so that the lead between the touch driving electrode and the touch driving circuit can be neglected, thereby saving the touch driving circuit.
  • the width of the non-display area of the touch screen required to be occupied, thereby reducing the width of the non-display area of the touch screen.
  • the touch sensing electrode and the touch sensing electrode lead are disposed on the inner surface of the upper glass substrate, that is, the upper glass substrate faces the surface of the liquid crystal layer, so as to prevent the touch sensing electrode lead from being scratched during the manufacturing process of the touch screen, thereby ensuring the inner The touch precision of the embedded capacitive touch screen.
  • the embodiment of the present application further provides a terminal device with a touch screen, including: a touch screen and a processor electrically connected to the touch screen; and the processor, configured to respond to the touch operation detected by the touch screen And transmitting information to be displayed to the touch screen;
  • the touch screen includes: a touch driving electrode touch sensing electrode, a touch driving electrode driving, a gate driving circuit, a touch driving electrode lead, and a liquid crystal panel; wherein the touch driving electrode is disposed at On the liquid crystal panel, the touch driving electrode extends in a first direction; the touch sensing electrode is disposed on the liquid crystal panel, the touch sensing electrode extends in a second direction, and the second direction is The first direction is vertical; the gate driving circuit is disposed in a non-display area of the touch screen, and the gate driving circuit extends along the second direction; the touch driving circuit is disposed in a non-display area of the touch screen And the touch driving circuit extends along the first direction, and the touch driving electrode passes the touch driving electrode lead
  • the touch driving electrode
  • the terminal device with a touch screen provided by the third aspect adopts a built-in capacitive touch screen with a narrower frame, so that the width of the terminal device can be made narrower.
  • the liquid crystal panel includes an upper glass substrate, a liquid crystal layer, and a lower glass substrate; the touch driving electrodes are disposed on the lower glass substrate, and the touch sensing electrodes are disposed On the upper glass substrate, the touch driving electrodes and the touch sensing electrodes are isolated from each other.
  • the liquid crystal panel includes an upper glass substrate, a liquid crystal layer, and a lower glass substrate; and the touch driving electrodes and the touch sensing electrodes are disposed on the lower glass substrate On the same plane, the touch driving electrodes and the touch sensing electrodes are isolated from each other.
  • the touch sensing electrode is a strip electrode and extends along the second direction, the touch sensing electrode is disposed on the lower glass substrate; the touch driving The electrode is a touch driving electrode array including a plurality of touch driving electrode blocks, one of the adjacent two columns of touch driving electrode blocks is disposed, and the touch driving electrode blocks of each row are electrically connected.
  • the present application further provides a terminal device with a touch screen, including: a touch screen and a processor electrically connected to the touch screen; the processor, configured to respond to the touch operation detected by the touch screen, and Sending information to be displayed to the touch screen;
  • the touch screen includes: a touch driving electrode, a touch sensing electrode, a touch driving circuit, an inductive processing circuit, a touch sensing electrode lead, and a liquid crystal panel, wherein the liquid crystal panel includes an upper glass substrate, a liquid crystal layer and a lower glass substrate; the touch driving electrode is disposed on the lower glass substrate, and the touch driving electrode extends in a first direction; the touch driving circuit is disposed in a non-display area of the touch screen, and The touch driving circuit extends in a second direction, the touch driving circuit is electrically connected to the touch driving electrode, the second direction is perpendicular to the first direction; and the touch sensing electrode is disposed on the upper glass substrate On the surface of the liquid crystal layer, and the touch sensing electrode extends along the
  • the terminal device with a touch screen provided by the fourth aspect, wherein the touch screen touch driving electrode is longitudinally disposed on the glass substrate, and the touch driving circuit is perpendicular to the extending direction of the touch driving electrode, so that the lead between the touch driving electrode and the touch driving circuit can be ignored.
  • the width of the non-display area of the touch screen required by the touch driving circuit is saved, thereby reducing the width of the touch screen border.
  • the touch sensing electrode and the touch sensing electrode lead are disposed on the inner surface of the upper glass substrate, that is, the upper glass substrate faces the surface of the liquid crystal layer, so as to prevent the touch sensing electrode lead from being scratched during the manufacturing process of the touch screen, thereby ensuring the inner The touch precision of the embedded capacitive touch screen.
  • FIG. 1 is a schematic structural view of a conventional embedded capacitive touch screen
  • FIG. 2 is a schematic structural diagram of an embedded capacitive touch screen according to an embodiment of the present application.
  • Figure 3a shows a partial enlarged view of the area A in Figure 2;
  • Figure 3b shows a partial enlarged view of the area B in Figure 3a;
  • FIG. 4 is a schematic structural diagram of another embedded capacitive touch screen according to an embodiment of the present application.
  • Figure 5a shows a partial enlarged view of the area C of Figure 4.
  • Figure 5b shows a partial enlarged view of the D area of Figure 5a
  • FIG. 6 is a schematic structural diagram of another embedded capacitive touch screen according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram showing the structure of a terminal device with a touch screen according to an embodiment of the present application.
  • the touch driving electrodes extend laterally, and the touch driving circuit is disposed in the non-display area of the touch screen and is perpendicular to the extending direction of the touch driving electrodes. Moreover, the gate driving circuit is also disposed in the non-display area of the touch screen and perpendicular to the extending direction of the touch driving electrodes. Both the touch driving circuit and the gate driving circuit have a certain width, so that the width of the frame of the capacitive touch screen is wide and cannot be narrower, thereby affecting the overall width of the capacitive touch screen.
  • the embodiment of the present application provides an embedded capacitive touch screen, wherein the touch driving electrode extends laterally, and the touch driving circuit is disposed in the non-display area of the touch screen, and is disposed in parallel with the extending direction of the touch driving electrode, and the touch driving circuit and the touch
  • the driving electrodes are electrically connected through respective touch driving electrode leads, wherein the touch driving electrode leads and the gate driving circuit are overlapped in the thickness direction of the touch screen, and the touch driving electrode leads are isolated from the gate driving circuit.
  • the width of the touch driving electrode lead and the gate driving circuit is equal to the width of one gate driving circuit, which saves the width required for the touch driving electrode lead, and reduces the width of the non-display area of the touch screen. Therefore, the capacitive type The border of the touch screen is narrower.
  • FIG. 2 a schematic structural diagram of a touch screen according to an embodiment of the present application is shown.
  • the touch screen of the embodiment is an in-cell capacitive touch screen.
  • the embedded capacitive touch screen includes: a touch driving electrode layer 201, a touch sensing electrode layer 202, a touch driving circuit 203, a liquid crystal panel 204, an inductive processing circuit 205, a gate driving circuit 206, and a touch driving electrode lead. 207; wherein the liquid crystal panel 204 is, in order from top to bottom, an upper glass substrate, a liquid crystal layer, and a lower glass substrate.
  • the touch sensing electrode layer 202 is disposed on the upper glass substrate of the liquid crystal panel 204, and the touch sensing electrode extends in the second direction (the second direction shown in FIG. 2 is a longitudinal direction);
  • the sensing processing circuit 205 is electrically connected to each of the touch sensing electrodes 202 for processing the electrical signals sensed by the touch sensing electrodes to identify the touch position in the next step.
  • the touch driving electrode layer 201 is disposed on the lower glass substrate of the liquid crystal panel 204, and the touch driving electrode extends in the first direction (the first direction shown in FIG. 2 is the lateral direction), and the first direction is perpendicular to the second direction.
  • the touch driving circuit 203 is disposed in the non-display area of the liquid crystal panel 204, and the touch driving circuit 203 extends in the first direction, that is, the touch driving circuit is disposed in parallel with the touch driving electrode, and the touch driving electrode passes through the touch driving electrode lead 207 and the touch driving circuit 203. Electrically connected, the touch drive circuit 203 is used to provide a drive signal to the touch drive electrodes.
  • the gate driving circuit 206 is disposed in the non-display area of the liquid crystal panel 204, and the gate driving circuit 206 extends in the second direction.
  • the gate driving circuit 206 is responsible for opening and closing the liquid crystal layer in the liquid crystal panel.
  • the touch driving electrode lead 207 is disposed above the gate driving circuit 206, that is, the touch driving electrode lead 207 and the gate driving circuit 206 overlap in the thickness direction of the lower glass substrate. Moreover, the touch driving electrode lead 207 and the gate driving circuit 206 are isolated from each other. As shown in FIG. 3b, the gate driving circuit 206 and the touch driving electrode lead 207 are isolated from each other by an insulating layer 208.
  • the touch driving electrode extends laterally, and the touch driving circuit is disposed in the non-display area of the touch screen, and is parallel to the extending direction of the touch driving electrode, that is, the extending direction of the touch driving circuit and the touch driving electrode.
  • the direction of extension is the same.
  • each touch drive electrode needs to be connected to the touch drive circuit through the touch drive electrode lead.
  • the touch drive electrode lead and the gate drive circuit are heavy. The stacking is disposed and isolated from each other, which saves the width required for the touch driving electrode lead, thereby reducing the width of the non-display area of the embedded touch screen and realizing the touch screen of the narrow border.
  • the touch sensing electrode and the touch driving electrode are disposed on the same plane of the liquid crystal panel, there is also a problem that the width of the touch screen frame is wide.
  • FIG. 4 is a schematic structural diagram of another embedded capacitive touch screen according to an embodiment of the present application
  • FIG. 5a is a partially enlarged schematic view showing a C area of FIG. 4
  • the touch sensing electrodes and the touch driving electrodes of the touch screen in this embodiment are all disposed on the lower glass substrate of the liquid crystal panel.
  • the embedded capacitive touch screen includes: a touch driving electrode 401, a touch sensing electrode 402, a touch driving circuit 403, a gate driving circuit 404, a touch driving electrode lead 405 (shown in FIG. 5a), and a liquid crystal panel 406.
  • the liquid crystal panel 406 is, in order from top to bottom, an upper glass substrate, a liquid crystal layer, and a lower glass substrate.
  • the touch driving electrode 401 and the touch sensing electrode 402 are both disposed on the lower glass substrate of the liquid crystal panel 406, wherein the touch driving electrode 401 extends in the first direction, the touch sensing electrode 402 extends in the second direction, and the second direction and the first direction vertical.
  • the touch driving electrodes 401 and the touch sensing electrodes 402 are isolated from each other.
  • the touch driving electrode is an array touch driving electrode, and includes a plurality of touch driving electrode blocks (the touch driving electrode 1 and the touch driving electrode 2 in FIG. 5a)
  • the driving electrode 3 or the like) is provided with a touch sensing electrode (the touch sensing electrode is a strip electrode) between the adjacent two columns of touch driving electrode blocks, and the touch driving electrode blocks of each row are electrically connected to form one touch driving electrode.
  • the touch driving electrode 401 is connected to the touch driving circuit 403 (shown in FIG. 4) through the touch driving electrode lead 405, so that the touch driving circuit 403 supplies a driving signal to the touch driving electrode 401.
  • the touch driving electrode lead 405 and the gate driving circuit 404 are overlapped in the thickness direction of the lower glass substrate 4061, and the touch driving electrode lead 405 and the gate driving circuit 404 are isolated from each other.
  • the touch driving electrode lead 405 and the gate driving circuit 404 are isolated from each other by the insulating layer 407.
  • the overlapping arrangement of the touch drive electrode lead and the gate drive circuit saves the width required for the touch drive electrode lead, and reduces the width of the non-display area of the embedded capacitive touch screen.
  • the touch driving electrode lead and the gate driving circuit are overlapped in the thickness direction of the lower glass substrate, and the touch driving electrode lead and the gate driving circuit are isolated from each other. In this way, the width required for the touch drive electrode lead is saved, thus reducing the width of the non-display area of the touch screen, so that the frame of the touch screen can be made narrower.
  • FIG. 6 a schematic structural diagram of another embedded capacitive touch screen according to an embodiment of the present application is shown.
  • the width of the touch screen border is reduced by adjusting the extending direction of the touch driving electrodes.
  • the embedded capacitive touch screen includes a touch sensing electrode layer 601, a touch driving electrode layer 602, a touch driving circuit 603, a gate driving circuit 604, an inductive processing circuit 605, a touch sensing electrode lead 606, and a liquid crystal panel.
  • the liquid crystal panel includes an upper glass substrate 607, a liquid crystal layer 608, and a lower glass substrate 609 in this order from top to bottom.
  • the touch sensing electrode layer 601 is disposed on the inner surface of the upper glass substrate 607 (ie, the side of the upper glass substrate facing the liquid crystal layer). Moreover, the touch sensing electrode extends in the second direction (the second direction shown in FIG. 6 is the lateral direction).
  • the sensing processing circuit 605 is disposed in the non-display area of the touch screen and parallel to the extending direction of the touch sensing electrode, and the touch sensing electrode is electrically connected to the sensing processing circuit 605 through the touch sensing electrode lead 606, so that the sensing processing circuit 605 processes the touch sensing electrode to sense The electrical signal is used to identify the touch location in the next step.
  • the touch sensing electrode lead 606 and the touch sensing electrode layer 601 are located on the inner surface of the upper glass substrate 607, so that during the manufacturing process of the touch screen, the touch sensing electrode lead 606 is not scratched, and the touch sensing electrode lead 606 is avoided. Poor touch caused by scratches.
  • the touch driving electrode layer 602 is disposed on the lower glass substrate 607 of the liquid crystal panel, the touch driving electrode extends in the first direction (the first direction shown in FIG. 6 is the vertical direction), and the touch driving electrode layer 602 and the touch sensing electrode layer 601 are mutually connected. isolation.
  • the touch driving circuit 603 is disposed in the non-display area of the touch screen, and the touch driving circuit 603 extends in the second direction, that is, the touch driving circuit 603 is perpendicular to the touch driving electrode, and therefore, the lead wire between the touch driving circuit 603 and the touch driving electrode may be ignore.
  • the touch driving electrode extends longitudinally, and the touch driving circuit 603 is disposed in the non-display area of the touch screen, and is perpendicular to the extending direction of the touch driving electrode, and the lead between the touch driving circuit and the touch driving electrode is negligible. Therefore, the width required for the touch driving circuit is saved, and the width of the non-display area of the touch screen is reduced, thereby reducing the border width of the touch screen.
  • the touch driving electrode is longitudinally disposed on the glass substrate, and the touch driving circuit is perpendicular to the extending direction of the touch driving electrode, so that the lead between the touch driving electrode and the touch driving circuit can be neglected, thereby saving
  • the width of the non-display area of the touch screen required by the touch driving circuit reduces the width of the border of the touch screen.
  • the touch sensing electrode and the touch sensing electrode lead are disposed on the inner surface of the upper glass substrate, that is, the upper glass substrate faces the surface of the liquid crystal layer, so as to prevent the touch sensing electrode lead from being scratched during the manufacturing process of the touch screen, thereby ensuring the inner The touch precision of the embedded capacitive touch screen.
  • FIG. 7 a schematic structural diagram of a terminal device with a touch screen according to an embodiment of the present application is shown.
  • This embodiment uses a smart phone with a touch screen as an example for description.
  • the terminal device includes a processor 701 and a touch screen 702, wherein the touch screen 702 is an embedded capacitive touch screen;
  • the processor 701 is connected to the touch screen 702, and the touch screen is sent to the processor 701 for subsequent processing.
  • the processor 701 responds to the touch operation according to the corresponding processing logic.
  • the processor 701 sends the touch screen 702 to the touch screen 702.
  • the data is such that the touch screen 702 displays the data.
  • the touch screen 702 can be any one of the embedded capacitive touch screens in the embodiments corresponding to FIG. 2 to FIG. 6 , and details are not described herein again.
  • the terminal device provided by the present embodiment adopts a built-in capacitive touch screen with a narrower frame, so that the width of the terminal device can be made narrower.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Input By Displaying (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un écran tactile et un dispositif terminal ayant un écran tactile. Une électrode d'attaque tactile s'étend dans une première direction. Un circuit d'attaque tactile est disposé au niveau d'une région de non-affichage d'un écran tactile et s'étend dans une direction parallèle à la direction d'extension de l'électrode d'attaque tactile ; ainsi, la direction d'extension du circuit d'attaque tactile est la même que la direction d'extension de l'électrode d'attaque tactile. En conséquence, chaque électrode d'attaque tactile doit être connectée au circuit d'attaque tactile par un fil d'électrode d'attaque tactile. Afin de réduire la largeur d'une lunette d'un écran tactile capacitif, le fil d'électrode d'attaque tactile est disposé dans une région dans laquelle est situé un circuit d'attaque de grille ; c'est-à-dire que le conducteur d'électrode d'attaque tactile et le circuit d'attaque de grille sont superposés et isolés l'un de l'autre. En conséquence, le fil d'électrode d'attaque tactile n'occupe pas une partie de largeur de la région de non-affichage de l'écran tactile, ce qui permet de réduire une largeur d'une lunette d'un écran tactile capacitif intégré, et de réaliser un écran tactile capacitif ayant une lunette étroite.
PCT/CN2017/078275 2016-12-26 2017-03-27 Écran tactile et dispositif terminal ayant un écran tactile WO2018120469A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/473,520 US10965798B2 (en) 2016-12-26 2017-03-27 Touchscreen and terminal device with touchscreen
CN201780004319.3A CN108513653B (zh) 2016-12-26 2017-03-27 触摸屏及具有触摸屏的终端设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611219943 2016-12-26
CN201611219943.9 2016-12-26

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WO2018120469A1 true WO2018120469A1 (fr) 2018-07-05

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CN (1) CN108513653B (fr)
WO (1) WO2018120469A1 (fr)

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